M27C256B15F1 STMicroelectronics, M27C256B15F1 Datasheet
M27C256B15F1
Specifications of M27C256B15F1
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M27C256B15F1 Summary of contents
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Kbit (32Kb × EPROM and OTP EPROM Feature summary 5V ± 10% supply voltage in Read operation Access time: 45ns Low power consumption: – Active Current 30mA at 5MHz – Standby Current 100µA Programming voltage: 12.75V ± ...
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Contents Contents 1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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M27C256B List of tables Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of figures List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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M27C256B 1 Summary description The M27C256B is a 256 Kbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable ideally suited for microprocessor systems and is organized as 32,768 by 8 bits. ...
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Summary description Table 1. Signal names A0-A14 Q0- Figure 2. DIP connections 6/24 Address Inputs Data Outputs Chip Enable Output Enable Program Supply Supply Voltage Ground Not Connected Internally Don’t ...
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M27C256B Figure 3. LCC connections M27C256B AI00757 Summary description A8 A9 A11 NC G A10 7/24 ...
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Device operation 2 Device operation The operating modes of the M27C256B are listed in the Operating Modes. A single power supply is required in the read mode. All inputs are TTL levels except for V for Electronic Signature. 2.1 Read ...
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M27C256B 2.4 System considerations The power switching characteristics of Advance CMOS EPROMs require careful decoupling of the devices. The supply current, I designer: the standby current level, the active current level, and transient current peaks that are produced by the ...
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... YES YES Last NO FAIL Addr YES CHECK ALL BYTES 1st 2nd 4. 5V. Two identifier bytes may then be sequenced from the the device identifier code. For the STMicroelectronics IH Table 3 M27C256B ++ Addr AI00760B at 12.75V, will 12.75V and All other address lines must be IH ...
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M27C256B 2.10 Erasure operation (applies for UV EPROM) The erasure characteristics of the M27C256B is such that erasure begins when the cells are exposed to light with wavelengths shorter than approximately 4000 Å. It should be noted that sunlight and ...
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... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 4. ...
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M27C256B 4 DC and AC parameters This section summarizes the operating and measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC Characteristic tables that follow are derived from tests performed under ...
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DC and AC parameters Figure 6. AC testing load circuit Table 6. Capacitance Symbol C Input Capacitance IN C Output Capacitance OUT 1. Sampled only, not 100% tested ° MHz) A Table 7. ...
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M27C256B Table 8. Programming mode DC characteristics Symbol I Input Leakage Current LI I Supply Current CC I Program Current PP V Input Low Voltage IL V Input High Voltage IH V Output Low Voltage OL V Output High Voltage ...
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DC and AC parameters Figure 7. Read mode AC waveforms A0-A14 E G Q0-Q7 ) Table 9. Read mode AC characteristics Symbol Alt Address Valid AVQV ACC Output Valid Chip Enable Low t t ELQV CE to ...
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M27C256B ) Table 10. Read mode AC characteristics 2 Symbol Alt Address Valid AVQV ACC Output Valid Chip Enable Low t t ELQV CE to Output Valid Output Enable t t Low to Output GLQV OE Valid ...
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DC and AC parameters Figure 8. Programming and Verify modes AC waveforms A0-A14 Q0- Table 11. Programming mode AC characteristics Symbol Alt t t AVEL QVEL VPHEL VPS ...
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M27C256B 5 Package mechanical Figure 9. FDIP28WB - 28 pin Ceramic Frit-seal DIP, with window, package outline 1. Drawing is not to scale. Table 12. FDIP28WB - 28 pin Ceramic Frit-seal DIP, with window (round 0.280"), package mechanical data Symbol ...
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Package mechanical Figure 10. PDIP28 - 28 pin Plastic DIP, 600 mils width, package outline 1. Drawing is not to scale. Table 13. PDIP28 - 28 pin Plastic DIP, 600 mils width, package mechanical data Symbol ...
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M27C256B Figure 11. PLCC32 - 32 pin Rectangular Plastic Leaded Chip Carrier, package outline E3 1. Drawing is not to scale. Table 14. PLCC32 - 32 pin Rectangular Plastic Leaded Chip Carrier, package mechanical data Symbol ...
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... Options TR = Tape & Reel Packing 1. High Speed, see AC Characteristics section for further information. For a list of available options (Speed, Package, etc) or for further information on any aspect of this device, please contact the STMicroelectronics Sales Office nearest to you. 22/24 M27C256B - M27C256B ...
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M27C256B 7 Revision history Table 16. Document revision history Date Version July 1998 20-Sep-2000 29-Nov-2000 02-Apr-2001 29-Aug-2002 18-May-2006 1.0 First Issue 1.1 AN620 Reference removed 1.2 PLCC codification changed 1.3 FDIP28W mechanical dimensions changed Package mechanical data clarified for PDIP28 ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...